The Graveyard - Products No Longer Supported > DIR-645

Dlink 645 VPN


Hi eveybody,

I need your help. In one of our small locations we have a Dlink 645 connected to our Internet provider router. There is a computer ( Windows 10)  connected to this Dlink switch and I want connect that computer to our main building and there is VPN  on it. We are using L2TP/IPsec with pre-shared key, but it doesn't connect  and it gives me this error msg "The L2TP connection attempt failed because the security layer encountered a processing error during initial negotiations with the remote computer"
I'm sure our VPN connection is fine, because I tested the connection from another location and it worked. I think the Dlink switch doesnt support L2TP, could you please help me with this?


Do you have the DIR-645? This is a router not a switch so if you are connecting to another router the double-NAT may be blocking the VPN.

On the router, go to Advanced > Firewall Settings and make sure IPSec (VPN) is checked. Click Save Settings.

If you connect the computer directly to the ISP router/modem does it work?

You are awesome! It fixed the problem.

Thanks again  :)


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